JPS62161986U - - Google Patents
Info
- Publication number
- JPS62161986U JPS62161986U JP5027786U JP5027786U JPS62161986U JP S62161986 U JPS62161986 U JP S62161986U JP 5027786 U JP5027786 U JP 5027786U JP 5027786 U JP5027786 U JP 5027786U JP S62161986 U JPS62161986 U JP S62161986U
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic oil
- oil supply
- supply passage
- passage
- hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010720 hydraulic oil Substances 0.000 claims description 15
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Percussive Tools And Related Accessories (AREA)
Description
第１図は油圧打撃工具の要部断面図、第２図は
制御弁の他の実施例の図である。
１…ピストン、２…シリンダ、３…前室、４…
後室、５…第１作動供給通路、６…第２作動供給
通路、７…アキユムレータ、９…第１室、１０…
第２室、１１…ブラダ、１２…作動油リターン通
路、１３…バルブ、１７…作動油供給通路、１６
，２０…パイロツト弁とパイロツトチエツク弁。
FIG. 1 is a sectional view of a main part of a hydraulic impact tool, and FIG. 2 is a diagram of another embodiment of a control valve. 1... Piston, 2... Cylinder, 3... Front chamber, 4...
Rear chamber, 5... First working supply passage, 6... Second working supply passage, 7... Accumulator, 9... First chamber, 10...
Second chamber, 11... Bladder, 12... Hydraulic oil return passage, 13... Valve, 17... Hydraulic oil supply passage, 16
, 20...Pilot valve and pilot check valve.
Claims (1)
に、そのシリンダ内に前室および後室を形成する
ピストンと、 上記前室を作動油供給源に接続する第１作動油
供給通路と、 前記後室を上記作動油供給源に接続する第２作
動油供給通路と、 前記第１作動油供給通路に介設され、ガスが封
入される第１室と作動油が流出入する第２室とを
ブラダにより区画されたアキユムレータと、 前記第２作動油供給通路に介設され、前記ピス
トンが前進位置にある時、前記第２作動油供給通
路を閉じ、そのピストンが後退位置にある時、そ
の第２作動油供給通路を開いて作動油をリターン
通路へ流出させるバルブ手段と、 前記第１作動油供給通路に作動油を供給する作
動油供給通路と上記リターン通路との間に介設さ
れ、その作動油供給通路内の油圧を検知し、前記
アキユムレータ内のガス圧よりも低い時には前記
リターン通路を閉じる制御弁とを設けた油圧打撃
工具。[Claims for Utility Model Registration] A piston that is slidably provided within a cylinder body and forms a front chamber and a rear chamber within the cylinder, and a first hydraulic oil that connects the front chamber to a hydraulic oil supply source. a supply passage; a second hydraulic oil supply passage that connects the rear chamber to the hydraulic oil supply source; and a first chamber that is interposed in the first hydraulic oil supply passage and is filled with gas, through which hydraulic oil flows in and out. an accumulator, which is interposed in the second hydraulic oil supply passage and closes the second hydraulic oil supply passage when the piston is in the forward position, and when the piston is in the retracted position; a valve means for opening the second hydraulic oil supply passage and causing the hydraulic oil to flow out to the return passage; and a valve means for supplying hydraulic oil to the first hydraulic oil supply passage and the return passage; A hydraulic impact tool, which is provided with a control valve that detects the hydraulic pressure in the hydraulic oil supply passage and closes the return passage when the pressure is lower than the gas pressure in the accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5027786U JPS62161986U (en) | 1986-04-02 | 1986-04-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5027786U JPS62161986U (en) | 1986-04-02 | 1986-04-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62161986U true JPS62161986U (en) | 1987-10-15 |
Family
ID=30873490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5027786U Pending JPS62161986U (en) | 1986-04-02 | 1986-04-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62161986U (en) |
-
1986
- 1986-04-02 JP JP5027786U patent/JPS62161986U/ja active Pending